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SimpleTestStatistic.h

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// ================================================
// SimpleTestStatistic class description
// ================================================
//
// THIS TEXT TO BE REPLACED BY ATLAS STANDARD FORMAT
//
// Namespace Atlfast::
//
// class: SimpleTestStatistic
//
// Authors: P.Clarke, H.Phillips, P.Sherwood
//
// Description: 
//
//  Class to maintain information on variables to be ables to 
//  make simple calculations on diostributions of these variables
//
//..................................................


#ifndef ATLFAST_SIMPLETESTSTATISTIC_H
#define ATLFAST_SIMPLETESTSTATISTIC_H

#include "GaudiKernel/ContainedObject.h"
#include <string>
#include <fstream>
#include "AtlfastEvent/Quartet.h"
//#include "GaudiKernel/MsgStream.h"
class MsgStream;

static const CLID CLID_SIMPLE_TEST_STATISTIC = 2311;

namespace Atlfast {

  using std::fstream;

  class SimpleTestStatistic;
  MsgStream& operator <<( MsgStream&, const SimpleTestStatistic& s) ;
  MsgStream& operator <<( MsgStream&, const SimpleTestStatistic* const s) ;
  //  MsgStream& operator <<( MsgStream&, const SimpleTestStatistic** s) ;

  //........................................
  class SimpleTestStatisticLabel;
  class SimpleTestStatistic: 
    public ContainedObject {
    
  public:
    
    // Constructors
    
    SimpleTestStatistic( std::string label):
      ContainedObject(),
      m_quartet(label,0,0.,0.){m_noTerminate=false;}

    SimpleTestStatistic( std::string label,
                         int count,
                         double mean,
                         double sigma):
      ContainedObject(),
      m_quartet(label, count, mean, sigma){m_noTerminate=false;}


    SimpleTestStatistic( std::string label, double mean):
      ContainedObject(),
      m_quartet(label, 1, mean, 0.){m_noTerminate=false;}

    ~SimpleTestStatistic(){};

    static const CLID& classID() {return CLID_SIMPLE_TEST_STATISTIC;}
    virtual const CLID& clID() const  {return CLID_SIMPLE_TEST_STATISTIC;}

    void increment(double val);
    void setNoTerminate(){m_noTerminate=true;}
    SimpleTestStatistic getTerminated();

    std::string label()const{return m_quartet.first;}
    double val()const{return m_quartet.third;}

    friend SimpleTestStatisticLabel;
    fstream& writeout(fstream& stream) const;
    MsgStream& writeout(MsgStream& stream) const;
    
    bool operator ==(const SimpleTestStatistic& rhs){
      return m_quartet.first==rhs.m_quartet.first;}

    bool isNull(){
      return  m_quartet.second==0   &&
        m_quartet.third ==0.         &&
        m_quartet.fourth==0.;
    }
                    
    SimpleTestStatistic operator -(const SimpleTestStatistic& rhs);
    SimpleTestStatistic diff (const SimpleTestStatistic& rhs) const;
    
  private:
    //keep variable label, number of occurences, sum and sum square
    Quartet<std::string, int, double, double> m_quartet;
    bool m_noTerminate;
  };
  fstream& operator <<( fstream& stream, const SimpleTestStatistic& s) ;
} // end of namespace 
#endif

  

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